<html>
<!-- This is split in two since data from header may round trip quickly
  enough from browser to be used, so this makes sure we actually merge -->
<meta name="Accept-CH" content="sec-ch-ua-arch,sec-ch-ua-platform">
<meta name="Accept-CH" content="sec-ch-ua-platform-version,sec-ch-ua-model,sec-ch-ua-full-version,sec-ch-prefers-color-scheme,sec-ch-ua-bitness,sec-ch-viewport-height,sec-ch-ua-full-version-list">
<link rel="icon" href="data:;base64,=">
<!-- A subresource! -->
<img src="non-existing-image.jpg"></img>
</html>
